Ontario Geological Survey aggregate resources inventory paper.
Contributors: Ontario Geological Survey.
Publisher: Ontario Ministry of Natural Resources
Published: 1979
Place of publication: Toronto
Language: eng
Number of pages: 141
Subjects: Aggregates (Building materials) -- Ontario.
Other titles: Aggregate resources inventory paper.
Notes: Includes bibliographical references.
Most maps folded in pocket.
Published by the Ministry of Natural Resources, 1979-<1984   >; by the Ministry of Northern Affairs and Mines, <1984   >; by the Ministry of Northern Development and Mines, 1985-<1989   >